#include <bits/stdc++.h>
#include "artclass.h"
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]) {
double average = 0.0;
for (int i = 0; i < H; i++) {
for (int j = 0; j < W; j++) {
if (i > 0) {
average += abs(R[i][j] - R[i - 1][j]) + abs(G[i][j] - G[i - 1][j]) + abs(B[i][j] - B[i - 1][j]);
}
if (j > 0) {
average += abs(R[i][j] - R[i][j - 1]) + abs(G[i][j] - G[i][j - 1]) + abs(B[i][j] - B[i][j - 1]);
}
}
}
average /= (double) (H * W);
if (average <= 15.0) {
return 4;
}
else if (average <= 50.0) {
return 1;
}
else if (average <= 150.0) {
return 2;
}
return 3;
}
